Breaking Down the Five Primaries: 1. Metaphysics: ABILITY

The root of (object) X’s causing or being caused upon is its Ability to exist. That is, the Ability of X to be what it is the the irreducible reason it can cause anything or be caused upon.

The apple falls from the tree because it is Able to be caused upon by gravity, and this because it is Able to be “apple”. The apple divots the soft ground because it is Able to carry the velocity necessary to do so, and this because it is Able to be “apple”.